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another BIOM101 clarification

Discussion in 'Biomechanics, Sports and Foot orthoses' started by markjohconley, Mar 5, 2016.

  1. markjohconley

    markjohconley Well-Known Member


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    An article referred to in Ian Griffiths f/b
    "Ankle-Dorsiflexion Range of Motion after Ankle Self-Stretching using a Strap", Journal for Athletic Training, In-choel Jeon et al


    'Static Stretching on the Incline Board
    Each participant flexed the knee slightly while standing on a 10 (deg) incline board. The participant was asked to slightly flex both knees. The participant was asked to slightly flex both knees until a stretch was felt in the calf muscle.'

    My query is why were the participant asked to flex the knees, rather than extend, to get a 'stretch' in the calves?

    Thanks for any replies

    Last thread re 'transverse plane motion' I queried adduction-abduction as a TP motion. I was thinking hip, knee and not sub-talar joint; not very clever for a podiatrist
     
  2. Johnpod

    Johnpod Active Member

    'Static Stretching on the Incline Board
    Each participant flexed the knee slightly while standing on a 10 (deg) incline board. The participant was asked to slightly flex both knees. The participant was asked to slightly flex both knees until a stretch was felt in the calf muscle.'

    My query is why were the participant asked to flex the knees, rather than extend, to get a 'stretch' in the calves?'




    -presumably this is to ensure that the full range of dorsiflexion (hopefully 10 degrees) occurred at the talocrural joint, without any restriction from a tight gastroc (origin above the knee)?

    It's a strange way of going about biomech examination!! - but it would indicate a tight (short) gastrocnemius if the knee could not be straightened without 'stretch' being felt ....
     
    Last edited: Mar 5, 2016
  3. markjohconley

    markjohconley Well-Known Member

    Thanks Johnpod, sorry I didn't phrase that question well; it was the second 'flex' in, "The participant was asked to slightly flex both knees until a stretch was felt in the calf muscle." that had me bamboozled; how can a knee straighten by flexing?
     
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